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Патент USA US2124104

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July 19, 1938.
F. CHATFIELD
2,124,104
KNITTING MACHINE
Filed July 30, 1954
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INVENTOR.
FRANKLIN CHATFIELD
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July 19, 1938.
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F. CHATF1ELD
. 2,124,104
KNITTING MACHINE
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July 19., 1938?
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_ INYENTOR
FRANK IN CHATFIELD
ATTORNEYS
July 19, 1938.
F. CHATFIELD
. 2,124,104
KNITTING MACHINE ‘
Filed July 30, 1934
5 Sheets-Sheet 4
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INVENTOR
FRANKLIN CHATF'IELD
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July 19, 1938.
F. CHATFIELDV
2,124,104
KNITTING MACHINE
Filed July 30, 1934
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Patented July 19, 1938
2,124,104 .
' m'rao ' STATES
PATENT OFFICE
' 2.124.104
nm'r'rmo MACHINE
by
Chat?eld, Minneapolis, Mimn, assignor,
one assignments, to Munsingwear, .Inc.,
eapolis, Minn, a corporation of Delaware
Application .iuly so, 1954, sci-n1 No. ?ancee
‘Z on.
This invention relates to new and useful im
provements in knitting machines and more par
ticularly to an attachment adapted for use in
connection with a conventional type, cylinder
5 machine, whereby said machine may be used for
knitting garments having different and variable
(Cl; 66--132)
to the knitting needles in measured quantities,
and which have a guide for directing the thread
thereto, which guide. is actuated by a pattern
mechanism operatively connected to the usual
ratchet mechanism of the knitting machine;
5
A further object is to provide a thread feeding
diameters along its length, such as are commonly
known as foundation garments, or girdles, which
are shaped to substantially conform with, or ?t
mechanism comprising two units, one including a
creased, the'diameter of the resultant garment
anism of the knitting machine, and comprising
pair of complemental cones adapted to feed an
elastic rubber thread to the knitting needles, and
having a movable thread guide for directing the 10
10 the body of the wearer.
~
Garments which are shaped to conform with thread thereto at different locations along the
the body of the wearer usually have courses of - length of said cones, whereby the varying diam
elastic rubber thread inlaid with certain of the eters thereof will constantly vary the feeding
- of the thread to the knitting machine needles, and
yarn courses, and to shape the garment, the ten
15 sion of this elastic laying-in thread is varied. the other unit or mechanism being operatively 15
connected to the usual automatic ratchet mech
When the tension of the laying-in threadis in
becomes relatively smaller and, conversely, when
the tension of the laying-in thread is decreased,
20 the diameter oi the garment becomes relatively
larger. This results because when the tension in
the laying-in thread is increased, a correspond
ingly less amount of said thread is fed to the knit
ting machines needles per revolution of the nee-_
a pattern cam having a driving connection with
the movable guide of the cone unit, whereby the
movement of said guide may be predetermined, 20
and its operation controlled entirely by the move
. ment of said cam. Y
Other objects of the invention reside in the
simple and inexpensive construction of the ap
25 die cylinder, than when the tension thereof ‘is ' paratus, as a whole; in the novel construction of 25
decreased, it being understood that the rotative the cone unit, whereby it may be completely
speed oi the needles is usually always constant. assembled as a unitary structure independently
Thus, the shape of the garment, diametrically, of the pattern mechanism, and driven independ
ently thereof; in the construction of the pattern
may be controlled entirely by feeding the elas
30 tic laying=in thread to the needles under varying mechanism which may be readily connected to 30,
the usual ratchet mechanism of the knitting ma
tension, or, in other words, in measured quanti
chine and driven thereby, and which comprises a
ties.
plurality of interchangeable cams adapted to
I am aware that attempts have heretofore been
made to provide apparatus for varying the ten . operate a. device having a driving connection with
sion in the laying-in thread delivered to the the movable guide of the cone unit; said pattern 35
knitting machine needles, but these have been mechanism also comprising a plurality of readily
changeable gears whereby the rotative speed of
more or less complicated. and have not been posi
, tive in
operation.
The novel thread-feeding
the cam my be varied; and the interchange
mechanism herein disclosed, presents the utmost» ability of said cams and also said gears making
40 in simplicity; is positive in operation; and may be it possible to‘ quickly readjust the knitting machine for different sizes and shapes of garments;
quickly attached to an ordinary knitting ma
chine in a comparatively short period of time. and, in the novel construction of the driving con
An object of the present invention, therefore, nection between said units, which does not neces
is to provide a thread measuring mechanism sitate that the units be mounted upon the knit
45 adapted to be attached toan ordinary knitting ting machine in a certaln‘de?nite relation, with
machine, whereby the elastic laying-in thread respect to each other, thereby greatly simplifying
is automatically'fed to the knitting ‘machine the work of mounting the thread feeding or meas
uring mechanism upon a knitting machine.
needles in constantly varying amounts, to there
Other objects of the invention will appear from
by provide a garment having different and vary
50 ing diameters along its length, whereby it will the following description and accompanying
substantially conform with, or ?t the body of the drawings and will be pointed out in the annexed
wearer.
"
_
i
A further object of the invention is to provide
a feeding mechanism comprising complemental
55 cones cooperating to feed the laying-in thread
4()
_
45
50
claims.
_ In the accompanying drawings, there has been
disclosed a structure designed to carry out the
various objects of the invention, butvit is to be 55
2
2,124,104
understood that the invention is not con?ned to
the exact features shown as various changes may
be made within the scope of the claims which
follow.
In the drawings:
Figure l is a view showing a portion of a con
ventional type knitting machine with my novel
thread feeding and measuring mechanism mount
ed thereon;
10
'
Figure 2 is a plan view of Figure 1, showing the
?exible driving connection between the cone and
pattern units;
Figure 3 is an enlarged side elevational view of
the cone unit, showing the driving connection be
15 tween the cones thereof and the usual ring gear
of the knitting machine cylinder, and further
showing the travel of the movable, guide for di
recting the thread to the tapered cones;
Figure 4 is a front view of the cone unit de
20
tached from the knitting machine;
Figure 5 is a sectional plan View on the line
5-5 of Figure 4, showing the yieldable stop for
the movable cone and the means provided for
relatively adjusting the movable cone with re
25 spect to the fixed cone;
~
Figure 6 is an enlarged detail sectional view on
the line 6—|i of Figure 4, showing the micrometer
adjustment provided for the movable cone;
Figure 7 is a side elevation of the pattern mech
30 anism showing the device which is operated by
the pattern cam’ to automatically move the thread
guide of the cone unit;
Figure 8 is a vertical sectional view on the line
~35
8—8 of Figure '1, showing the general construc
tion of the pattern unit and the preferred manner
I of connecting it to the usual ratchet mechanism
of the knitting machine;
-
Figure 9 is a detail sectional plan view on the
line 9-9 of Figure 8, showing the driving con
40 nection between the ?exible shaft and the pattern
cam; and
Figure 10 is a diagrammatic view showing the
outline of the tubular knitted fabric produced by
the knitting machine, as a result of the novel
45 attachment herein disclosed.
Knitting machine
In the selected embodiment of the invention
here shown, there is illustrated in Figure 1, for
50 purposes of disclosure, a portion of a knitting
machine comprising the usual lower base member
or ring 2 supported upon suitable legs, not shown
in the drawings. Side frame members 3 are
shown secured to the base member 2 and support
65 an upper annular member 4, commonly known
as the head base. The cam ring 5 is supported
upon the head base 4 and within this ring is
mounted the usual cylinder 6, in which the ver
tically disposed knitting needles 1 are mounted,
60 and the dial plate III which supports the hori
zontally disposed needles 20 as partially illus
trated in Figure 3.
Cone Unit
65
The cone unit is shown in Figures 1 to 6, in
clusive, and, as‘ best shown in Figure 4, comprises
The lower end of the shaft i has a bevel gear
l5, which meshes with a complemental gear I!
secured to a shaft [1 rotatably mounted in a
bearing I8, shown provided at one end of a bell
crank i9, adjustably secured to a depending ex
tension 2| of the bracket I3 by suitable bolts 22
and 23. The bolt 23 passes through an enlarged
aperture 20 in the extension 2 I, and is received in
threaded engagement with the bell crank I9 at
the opposite side of said extension 2|, whereby 10.
when‘ the bolts 22 and 23 are loosened, the bell
crank l9 may oscillate about the axis of the bolt
22 within the limits of the clearance provided be
tween the walls of the bolt 23 and the aperture
20, to thereby relatively vertically adjust the posi
15
tion of the shaft i1.
A bevel gear 24 is detachably secured to the
opposite end of the shaft H by a suitable set
screw 25 and meshes with the usual ring gear 26,
suitably secured to the knitting machine cylinder 20
6, as best shown in Figure 3.
As a result of the bell crank l9 being adiustably
mounted upon the depending extension 2| of the
bracket I3, the bevel pinion 24 may be conven
iently adjusted with respect to the ring gear 28 to 25
accurately aline it therewith. The pinions l5
and I6, which operatively connect the shaft II to
the shaft | l, are detachably secured to their re
spective shafts so that they may readily be re
moved therefrom and other gears substituted 30
therefor to vary the speed of the cones 8 and 8.
To prevent longitudinal movement of the shaft
H, the latter is shown provided with an integral
?ange 21 adapted to engage one end of the bear
ing l8, and a collar 28 secured thereto by such 35
means as a pin 29, which engages the opposite
end of the bearing I8. By thus supporting the
shaft H in the bearing l8, the bevel gears l5 and
I6 may readily be removed from their respective
shafts and other substituted therefor, without
disturbing the position of the shaft I1.
The cone 8 is shown provided with an axial
bore 3| provided. at its ends with suitable bush
ings 32 and 33, bored to rotatably receive a spin
dle 34 suitably secured to a hub 35 provided upon 45
an arm 36. The arm 36 is adjustably secured to
a complemental arm 31 mounted for pivotal move
ment upon an upright stud 38 secured to the
bracket |3, as best shown in Figure 3. A suitable
cap screw 39 secures one end of the arm 36 to the
‘arm 31, and the opposite end of the arm 38 is
adjustably secured to a lateral'extension 4| of the
arm 31 by a suitable cap screw 42. This cap
screw, as best shown in Figure 6, passes through
an enlarged aperture 43 in the lateral extension 55
4| of the 'arm 31, and is received in threaded en
gagement with the terminal of the arm 33, where
by when the set screw is loosened, the arm 33 may
be relatively adjusted with respect to the lateral
extension 4|, within the limits of the clearance 60
provided between the walls of the aperture 43 and
the periphery of the,cap screw 42.
It is essential that the gap or contacting por
tions of the peripheries of the cones 8 and 8 be
disposed in~parallel relation, as shown in Figure 65
4, so that the gripping action of the peripheries
a pair of cones 8 and 9 mounted in angular . of said cones upon the thread will be substantially '
relation with respect to each other, whereby the uniform the full lengths of the cones to thereby
gap provided between the peripheries thereof is
70 substantially vertically disposed. The cone 9 is
secured to a shaft || rotatably supported in a
suitable bearing l2 in a bracket I3, having a por
tion seated upon the head base or annular mem
ber 4 of the knitting machine and suitably secured
75 thereto by bolts 14.
The peripheries of the
cones are preferably knurled or slightly rough 70
ened, as indicated in Figure 4 to‘ provide better
gripping surfaces for the thread.
To accurately adjust the cone 8 with respect to
' avoid thread slippage.
the cone 9, a small adjusting screw 44 is re
ceived in threaded engagement with the outer 75
3
2,124,104
end of the lateral extension 4| of the arm 31 and
adjusted to properly position the pinion 6i with
has its inner terminal engaging the set screw 42,
respect to the rack 55, as clearly illustrated in
Figures 8 and 4. A suitable guide 85 may be
secured to the head 58, as shown in Figure 3,
to. guide the thread 86 into the groove 68 in
the head 68. A suitable guide 61 is also provided
upon the cam ring adjacent to the knitting ma
chine needles to guide the‘thread from the cones
to the ~needles, as best shown in Figure 2.
10
Pattern unit
The pattern unit is shown in Figures 1, 2, 7, 8,
and 9, and, as best shown in Figures 7 and 8,
comprises a pattern cam 68 whose periphery is
engaged by the lower end of a rack bar 68, slid 15
ably supported in a head 'II and meshing witha
as best shown in Figure 6. The outer end of the
adjusting screw 44 may be slotted, as shown, to
receive a suitable instrument for rotating it, and
said screw is normally locked in adjusted position
- by a suitable lock nut 45. The adjusting screw
44 provides, in e?'ect, a micrometer adjustment
for the cone 8, whereby when the cap screws. 38
10
and 42 are slightly loosened, the angular position
of the cone 8 with respect to the cone '8 may be
" accurately adjusted by rotation of the adjusting
screw 44, as will readily be understood by refer
ence to Figures 4, 5, and 6.
15
Means is provided for varying the gap between
the peripheries of the cones 8 and 8 to suit the
diameter of the thread to be fed by said cones and,
as best shown in Figures 3 and 5. may consist of
a 'U-shaped bracket 46 suitably secured to the
pinion ‘I2 provided at one end of a short shaft
I3. One end of a ?exible shaft 74 is connected
supporting bracket i8 and having its spaced legs
to the shaft ‘I3 by meansv of a suitable ?tting ‘I8,
shown provided with a set screw ‘I6 for securing 20
positioned'at opposite sides of the arm S'I. An
it to said shaft. '
abutment screw 41 is adjustabiy secured in one
leg of the U-shaped bracket 46 and has its ter
‘
>~
Means is provided for constantly holding the
lower end of the rack bar 89 in operative engage
,ment with the periphery of the cam 68 and, as a
minal engaging the arm 31 to thereby limit move
ment thereof in a direction towards the cone 8. ' shown in Figures 7 and 8, may consist of a suit 25
able weight 11, removably supported upon the
A suitable lock nut 48 secures the abutment
screw 41- in adjusted position.
-
_
The arm 31 is yieldably held against the abut
ment screw 41 by a suitable compression spring 48
30 having one end engaging the arm 81 and its op
posite end seated in the bottom of a socket re
ceived in an adjusting screw 5i, provided in a
U-shaped bracket 46. A suitable lock nut '52
secures the spring-retainingscrew 48 in posi
35 tion in the bracket 46. By thus supporting the
arm 81, the cone 8 is normally retained in a
40
bar is always maintained constant, regardless 35
of the position of the rack bar in the head ,1! .
The cam 68 is shown mounted upon a hub,
de?nite ?xed relation with respect to the driving
cone 8, whereby the thread-receiving gap between ,generally indicated by the numeral ‘I8, and is
said cones is maintained substantially constant. detachably secured thereto by a clamping plate
Should the thread being fed between the cones,‘ 18 secured to the hub by a plurality of cap
screws 8|. The hub ‘I8 isrotatably supported
however, contain a knot, slug, or some other de
upon a ?xed sleeve 82 secured to a standard or
fect, whereby it might be slightly larger in diam
bar 88 which is supported upon the reduced ter
eter, then when. such defect engages the periph
cries of the cones 8 and 8, the cone 8 will yield
minal 84 of a rod 88, which rod constitutes a por- .
against the compression of the spring 48, and thus
tion of the usual ratchet mechanism of the knit
permit the defective portion of the thread to
pass between the cones 8 and 8 without danger
of the thread being broken by the feeding ac
meral 88 in Figure 1. The hub ‘I8 is retained
on the sleeve 82 by a washer 81 and a-nut 88
tion thereof.
\
>
'.
The cone 8. as hereinbefore stated, is ?xedly
secured to the shaft Ii and is positively driven
thereby when the knitting machine is operating.
The yieldable cone 8 is driven from the cone 8 by
suitable gears 53 and 54, suitably secured to the
55 cones 8 and 8, respectively, as shown in Figure 4.
The teeth of the gears 58 and 54 are of a suit
able depth to permit relative movement of the
cone 8 towards or away from the cone 8, without
interfering with the driving connection between
(ii
upper end of the rack bar, whereby the latter
is constantly urged in a downward direction into
engagement with the cam 68. It is to be under
stood, of course, that other means, such as a 30
spring may be used for holding the rack bar in
engagement with the cam. A weight, however,
has been found preferable,.for the reason that
the downward force then exerted upon the rack
said gears.
The means for guiding or directing the thread
between the cones 8 and 8 is best shown in Fig
ting machine, generally indicated by the nu
received.
in- threaded , engagement
with
the
threaded terminal of the reduced extension 84 of
the rod 88. The rod 85 is supported in the
brackets 88 and 8| of the ratchet mechanism 88,
which brackets are secured to one of the side
frame ‘members 8 of the knitting machine, in
the usual manner, as best shown in Figure 1.
56
A gear wheel 82 is detachably secured to the
hub ‘I8 by bolts 88, and is shown meshing with
an intermediate or idler gear 84 carried by an
arm 85 having a hub 88 adjustably secured to a‘
sleeve 87, ?xedly mounted in the lower end of 60
the bar 88. The hub 88 of the arm 88 is pref
erably split, as indicated at 98 in Figure 7, and
has a lock screw 88 for securing the hub in ad
ures 3 and 4, and comprises a rack bar 55 mount
ed in suitable guides 68 and 81 provided in av small I iusted position upon the sleeve 6?.
The gear '82 on the hub ‘I8 is driven from 65
bracket 58 suitably secured to the main support
ing bracket I8. The rack 65 is provided at its ' the usual shaft iii! of the ratchet mechanism
upper end with a head 68 having a.‘ groove '88 . 86, by means of a pinion I88 secured to the ter
the. main supporting bracket l3 by a suitable cap
minal thereof and meshing with the interme
diate gear 86, as best shown in Figure '2’. Thus,
when the shaft i8! is rota, rotary motion is 78
imparted to the cam 88 which, in turn, will ac~
tuate the rack bar 88 and thereby cause the
guide 880i the cone unit to move vvertically with
screw 64.
respect to the cones 8 and 8. '
therein adapted to receive the thread, as clearly
illustrated in Figure 3.
,
‘ ; >
The rack bar 58 meshes with a pinion 8! pro
vided at oneend of a stub shaft 82 rotatably
mounted in a bearing 68, adjustably secured to
The cap screw 64 provides means.
whereby the bearing bracket 83 may be relatively
The shaft III. which also is a part of the 76.
2,124,104
80 will be in the full line position, shown in Fig
ure 3, whereby less thread is fed to the knitting
usual ratchet mechanism 88 of the knitting ma
chine, is driven by a pawl I08 secured to‘ a bar
I04 mounted for reciprocal movement in suit
machine needles. By thus retarding the feeding
of the laying-in thread to the needles, said thread
is delivered to the needlesunder tension, where
able guideseprovided upon the bracket 8|, and
actuated by a rock shaft I05, having at its lower
end, an arm I08 adapted to be actuated by a
cam member I01 secured to the rotatable plate’
I08 of the lower portion of the knitting machine,
as best shown in Figurel. The above described ,
10 mechanism constitutes a part of the usual
ratchet mechanism 88 of the knitting machine,
and it- is therefore thought unnecessary to de
scribe the same in detail, any more than to show
the operative connection between the rotatable
plate I08 of the knitting machine and the shaft
IOI.
20
by the knitted tube is contracted, as shown at I08
in Figure 10. It will thus be seen that the shape
of the garment is controlled entirely by varying
the tension in the laying-in thread, as it is de
livered to the knitting machine needles, as will
readily be understood from the above.
The thread measuring mechanism herein dis
closed, is very simple and inexpensive in con
struction, and may readily be attached to a con
ventional knitting machine of the cylinder type,
without materially altering the construction
'
Operation
‘The novelv mechanism herein disclosed is par
ticularly adapted for feeding an elastic thread,
commonly known as the laying-in thread, to the
knitting machine needles. The thread is re
ceived from the usual source of supply, such as a
thereof. The mechanism, as hereinbefore stated,
comprises two individual units or mechanisms,
which are operatively connected together by the
?exible shaft ‘ll, best shown in Figure 2. By
thus constructing the two units, they may be
completely assembled, independently of each
other, and mounted upon the knitting machine,
as shown in Figure 2. A suitable guide H2, is
preferably provided to support the ?exible shaft .
‘I4, provided between the two units, as shown in
bobbin, not shown, suitably placed adjacent to
the machine, from whence it may pass directly
25 to the guide 65, and through the groove 80 in
the head 59 of the cone unit, as shown in full ' Figure 2.
lines in Figure 3.
_
From the groove 60, the thread
In the drawings I have shown a mechanism
passes between the cones 8 and 8 and through
the eye or guide 81 to the knitting needles ‘I
30 The cones 8 and 9 function to measure the thread
capable of producing a garment shaped to sub
stantially fit the lower portion of the wearer's
body, such as vthe hips and waist line, but it is
to be understood that by varying the shape or
the cam 88 and changing'the gear ratios of the
mechanism, that a garment may be produced
delivered to the knitting needles, by constantly
varying the tension therein, whereby the knitted
tube is constantly varying in diameter along its
length, as shown in Figure 10.
The narrower
portions shown at I08 provide the waist line of
the garment, and the relatively wider portion
shown at III provides the hip portion of the
garment.
The tube is severed transversely along the lines
40 a—a and b-—b, whereby each severed portion will
provide a garment, it- being understood that the
severedeedge portions thereof are suitably ?n
ished to prevent the material from raveling.
_
The size and shape of the garment is con
45 trolled by the shape of the pattern cam 88, and
also by the speed of the cones 8 and 8. The
length of the garment between the lines a-a and
b-b may be varied by changing the size of the
fear 8!, shown in Figures 7 and 8. This gear
50 is readily detachable whereby a larger or a small
Er gear may be substituted therefor, depending
pon the size of the garment. The cones 8 and
,
rotate continually, when the cylinder of the
knitting machine operates, because of being di
55 rectly connected therewith, as shown in Fig
ure 3. The pattern cam 88 operates intermit
tently, as a result of the ratchet mechanism 88, '
shown in Figure 1.
When the high point of the cam is engaged
with the rack bar 88, the guide 88 of the cones
will be in the dotted line position, shown in
Figure 3, whereby the thread is fed between the
cones at their larger diameters, resulting in more
thread being fed to the knitting needles per
revolution of the knitting machine cylinder.
When more thread is thus fed to the knitting
needles for each revolution of the cylinder, there
is less tension in the laying-in thread, which re
sults in the relatively larger diameter of the
70 knitted tube, as shown at III in Figure 10.
which will substantially fit the contour of the
entire length of the wearer's body, including the
breast, waist line and hips.
I claim as my invention:
1
1. The combination with a. knitting machine
comprising a frame, a rotary needle cylinder
provided with a ring gear having a driving con
nection with a source of power, and an auto
matic ratchet mechanism, of a thread feeding
unit for feeding an elastic thread to the cylinder
in measured quantities, said unit comprising _
complemental cones tapered in the same direc
tion and suitably geared together for positive
operation in opposite directions, a gear drive for
the -unit, including a pinion meshing with the
cylinder ring gear, a guide for directing the
thread 'to the cones, a pattern mechanism re- '
mote from said cones and operatively connected
to said ratchet mechanism, and a ?exible mem
ber connecting‘ said pattern mechanism to the
thread guid‘e, whereby operation of the pattern
mechanism will relatively move said guide to
thereby feed the thread between said cones at
di?erent locations along their length, whereby
' the
thread
is
delivered
to
the
cylinder
in ‘
measured quantities, and said thread guide hav- ,
ing a rack engaging a pinion on said ?exible ,
member, whereby a positive movement is im- ,
parted to the guide.
2. The combination with a knitting machine
comprising a frame, a rotatable needle cylinder,
and an automatic ratchet mechanism, of an ap
paratus for feeding an elastic thread to the cyl
inder in measured quantities, said mechanism
comprising a cone unit secured to said frame and
having a pair of similarly tapered cones suitably
As the cam 88 rotates, and the low point of geared together for simultaneous rotation in op
the periphery of the cam approaches the rack posite directions, means for positively driving
bar 89, the guide 80 of the cones. will gradually said cones, a rack bar mounted for movement
move upwardly until the lowermost point of the lengthwise of the cones and having a thread
‘guidesecured thereto for directing the thread
175 cam engages the rack 89, at which time the guide
2,124,104
to the cones, a patternmechanism remote from
said cones and having an operative connection
with said ratchet mechanism, and a .?exible
shaft connecting said pattern mechanism to said
thread guide, whereby operation of said pattern
mechanism will relatively‘move said guide to
thereby deliver the thread between said cones at
different locations along their length, whereby
the thread is delivered to the cylinder in meas
10 ured quantities.
3. The combination with a knitting machine
comprising a frame, a rotary needle cylinder,
and an automatic ratchet mechanism, of- an ap
paratus for feeding an elastic thread to the
15
cylinder in measured quantities, said mechanism
comprising a unit secured to the machine frame
and having cooperating cones for feeding the
thread to the cylinder, means for positively driv
ing said cones, a guide for directing the thread
5
to a knitting machine in measured quantities,
said mechanism comprising a thread feeding unit
adapted to be completely assembled before at
tachment to the knitting machine and compris
ing cooperating thread feeding cones geared
together for positive and simultaneous operation
and having a drive for operatively connecting;
them to the usual ring gear of the knitting ma
chine cylinder, and a guide for feeding the
thread between said cones along the length- there
of, and a second unit for operating said guide,
said second unit being mounted on the knit
ting machine independently of said ?rst men
tioned unit and comprising a cam-having a
driving connection with the knitting machine, 15
and a rack bar having‘one end engaging the
periphery ofthe cam, and a pinion meshing
,with said rack and having a driving connection
_ with the guide on the thread feeding unit, where- '
20 to the cones, a detachable pattern cam ~con- ' by when the rack bar is actuated by said cam,
nected to and driven by said ratchet mechanism,
said guide will be moved along said cones, there
a rack bar having one end engaging the periph
cry of said cam and meshinglwith a pinion, and
by to control the feeding of the thread thereto, .
a ?exible shaft connecting said pinion to said
25 guide, whereby when the cam'is rotated, said
shaft will be operated to actuate said guide and
thereby deliver the thread to said cones at dif
ferent locations along their length, whereby the
thread is delivered to the cylinder at varying
30
speeds.
4. In a thread feeding mechanism for a knit
ting machine, a pair of tapered cones having a
driving connection with the knitting machine,
a guide movable lengthwise of said cones to di
rect the thread therebetween, a rack bar for
said guide, a pattern mechanism comprising a
cam suitably driven from the knitting machine,
a rack- bar mounted for longitudinal movement
and having one end engaging the periphery of
40 said cam. and a driving connection between said
‘rack bars, whereby when the cam is rotated, said
guide will _be moved with respect to the cones to
thereby deliver the thread therebetween along
their varying diameters.
45
-
'
v
5. In a thread feeding mechanism for a knit
ting machine, a pair of cones having a, positive
driving connection with ~the knitting machine
a guide for directing the thread between said
cones, a rack ‘bar for supporting said guide, a
50
pinion meshing therewith, a pattern mechanism
for controlling the operation of the guide com
prising a rotary cam driven in timed relation to'
and the driving connection between said units
being such that the units may be mounted re
motely from one another on the knitting ma
25
chine frame, and at varying angles with re
spect to one another without interfering with
the operation of said- driving connection.
7. A mechanism for feeding an elastic thread
to a knitting machine in measured quantities,
said mechanism comprising a thread feeding unit
adapted to be completely assembled before at
tachment to'the knitting machine and ‘compris
ing cooperating thread feeding cones geared to
gether for positive and simultaneous operation 35
and having a drive for operatively connecting
them to the usual ring gear of the knitting ma
chine cylinder, and a guide for feeding the
thread between said cones along the length there
of comprising a rack and pinion, and a second 40
unit for operating said guide, said second unit
being mounted" on the knitting machine inde
pendently of said ?rst mentioned unit and com
prising a cam having a driving connection with
- the knitting machine, and a rack bar having 45
one end engaging the periphery of the cam, a
pinion meshing with said rack, and a ?exible
driving member operatively connecting together
the pinions on said units. whereby when the
rack bar on the second unit is actuated by said
cam, said guide will be moved along said cones.
thereby to control the feeding of .the thread
the knitting machine, a rack bar engaging the , thereto. and the ?exible driving member between
periphery of said cam and movable thereby, a said units permitting the units to be mounted
remotely from one another on the knitting ma 55
55 pinion meshing with said rack bar, and a ?exi
ble shaft connecting together said- pinions,
whereby operation oflsaid pattern mechanism
chine frame and at varyingvangles with ‘respect
to one another without interfering with the op
will control the movement of said guide. with - eration of said driving member.
respect to the cones.
' _
to \ 6. A. mechanism for feeding an elastic thread
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